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How do I avoid capturing self in blocks when implementing an API?

...here; the delegate may retain our object but that's out of our hands right now). This code won't risk a leak in the same way, because the value of the delegate property is captured when the block is created, instead of looked up when it executes. A side effect is that, if you change the delegate aft...
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Does Python SciPy need BLAS?

...to provide build and installation instructions, but the instructions there now rely on OS binary distributions. To build SciPy (and NumPy) on operating systems without precompiled packages of the required libraries, you must build and then statically link to the Fortran libraries BLAS and LAPACK: m...
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Simplest two-way encryption using PHP

... guys, just FYI => MCRYPT IS DEPRECATED. capsing so everyone should know not to use it as it gave us a myriad of issues. It deprecated since PHP 7.1 if i'm not mistaken. – clusterBuddy Jun 3 '19 at 10:29 ...
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Why does one hot encoding improve machine learning performance?

... the constraint w×x + b > 0, or equivalently w×x < b. The problem now is that the weight w cannot encode a three-way choice. The three possible values of w×x are 0, w and 2×w. Either these three all lead to the same decision (they're all < b or ≥b) or "UK" and "French" lead to the sa...
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Spring @Autowired usage

... My reasons for preferring fully @Autowired have changed over time. Right now I think the most important reason for using autowiring is that there's one less abstraction in your system to keep track of. The "bean name" is effectively gone. It turns out the bean name only exists because of xml. So a...
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Azure SQL Database Bacpac Local Restore

...orrect : Installing latest version of SSDT solved the issue. All is better now. – Antoine Meltzheim Oct 30 '13 at 9:57 4 ...
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How do you default a new class to public when creating it in Visual Studio?

...and up: See the answer by @JochemKempe, as it's much easier to change this now, just by editing a single file (no unzipping or rezipping). UPDATE: Don't forget to open your preferred text editor with admin privileges before you do any edit. ...
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When should you use constexpr capability in C++11?

...t b ) { return a * b; } const int meaningOfLife = MeaningOfLife( 6, 7 ); Now you have something that can be evaluated down to a constant while maintaining good readability and allowing slightly more complex processing than just setting a constant to a number. It basically provides a good aid to ma...
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How does Go compile so quickly?

...in a really fast compiler working on 286-class hardware. I think that even now, modern Pascal compilers (e.g. FreePascal) are faster than Go compilers. share | improve this answer | ...
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How to change package name of an Android Application

... It does the same to me right now if I right-click on the root directory. At least for me, that's not my actual package name. If your package name is com.a.bc, there should be a directory below the root directory called bc. That's where you'll get the dif...